Health Insurance Marketplace
Updated for plan year 2026
In plain terms
The Health Insurance Marketplace is the government-run exchange where you compare and buy individual health plans, and the only place you can get a premium tax credit or cost-sharing reductions. Most states use the federal marketplace at HealthCare.gov; others run their own. Plans are grouped into metal tiers, all cover the same essential health benefits, and none can deny you or charge more for a pre-existing condition. Obamacare is just a nickname for the Affordable Care Act that created it.
A plain example
You log into the marketplace, enter your household and income, and see plans side by side with your premium tax credit already applied. A silver plan listed at $520 shows as $180 after a $340 credit. Buy the same insurer's plan directly off the marketplace and you'd pay the full $520, because the subsidy only exists on the exchange.
Why it matters
The marketplace is where subsidies live, so for anyone who might qualify for help, it's the place to shop. It also standardizes what you're comparing, with the same benefit categories and the same pre-existing-condition protections, letting you choose on price, network, and tier rather than fine print.
A common point of confusion
Subsidies exist only on the marketplace. The identical plan bought directly from an insurer or a broker off-exchange can't carry a premium tax credit, so going around the marketplace can mean paying full price for coverage you'd have gotten subsidized.